Question: When did Alexander Graham Bell divorce from Mabel Gardiner Hubbard?
Paraphrase: Around what time did Alexander Graham Bell separate from Mabel Gardiner Hubbard?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q34286 p:P26 ?s . ?s ps:P26 wd:Q6721445 . ?s pq:P582 ?value}